Consequence-Based Criteria for the Gulf of Mexico: Development Calibration of Criteria

摘要

An API Task Group has recently developed Consequence-Based Criteria for the design of new platforms in water depths to 400 feet in the Gulf of Mexico. Risks were categorized in three levels, and appropriate design criteria (expressed as wave, wind, and current criteria) were developed for each of these three levels. This paper will describe the development and calibration of these new criteria from the philosophy, premises, and assumptions, which are documented in a companion paper OTC 11885. [1] The criteria for the most severe risk level are taken as the criteria first presented in the 20th Edition of API RP2A. The criteria for the intermediate risk level incorporated the favorable history and experience of existing platforms that were designed to the 9th - 19th Editions of API RP2A. The criteria for the least severe risk level were based on a statement of acceptable risk for such structures.